Double-wall, vacuum-insulated 18/8 stainless steel
Scratch-resistant, slip-free powder-coat finish
Easy, sweat-free grip + no temperature transfer
Non-toxic, BPA & Phalate-free, no flavor transfer
Leak-proof, polypropylene PP #5, looped cap
Steaming hot or ice cold, the Hydro Flask 21 Oz. Vacuum-Insulated Standard Mouth Water Bottle safely keeps your beverages at the right temperature and easy to access. The double-wall, vacuum-insulated body keeps drinks hot up to 6 hours or cold up to 24 hours, while TempShield protection prevents temperature transfer to the outside. 18/8 Pro Grade stainless steel construction is non-toxic, highly durable, and has no flavor transfer. Scratch-resistant powder-coat finish provides an easy-grip exterior that's sweat and slip-free. BPA and Phalate-free. Compatible with Standard Loop cap and Sport Cap (not included). Hydro Flask lifetime warranty.